Grand Lodge Calendars are updated many times through out the year. Check back often for updates. Future Grand Lodge Locations and Dates Des Moines; September 20-22, 2018 Cedar Rapids; September 19-21, 2019 Sioux City; September 17-19, 2020 Davenport; September 16-18, 2021 Waterloo; September 15-17, 2022 To place a lodge event on the Grand Lodge …